Results 151 to 160 of about 62,109 (287)

Patrones de variación espacio-temporal de grupos funcionales alimentarios en arroyos serranos de Córdoba, Argentina

open access: yesEcología Austral, 2010
La estructura trófica de las comunidades bentónicas está condicionada por la disponibilidad de recursos alimenticios, los cuales a su vez varían en función del tamaño del arroyo, la cobertura y el tipo de sustrato.
Romina E. Príncipe   +4 more
doaj  

Community structure and water quality in Mediterranean streams of a Natural Park (Sant Llorenç del Munt, NE Spain) [PDF]

open access: yes, 2012
Se estudian las comunidades de macroinvertebrados de los ríos del Parque Natural de Sant Llorenç del Munt i la Serra de l'Obac (Barcelona, NE España) y su relación con las condiciones de flujo de los ríos.
Bonada i Caparrós, Núria   +2 more
core  

Ecological change may be a common initiator of evolutionary pollinator shifts

open access: yesNew Phytologist, EarlyView.
Summary Although evolutionary pollinator shifts are accepted as major sources of floral and species diversity in angiosperms, the mechanisms triggering pollinator shifts remain largely unexplored. In 1970, Stebbins proposed that ecological change may be a common initiator of evolutionary pollinator shifts, but empirical tests of Stebbins' hypothesis ...
Agnes S. Dellinger
wiley   +1 more source

Analysis of some physical-chemical and biological water parameters in two thermal seasons at Ensenada stream, Diamante, Entre Ríos [PDF]

open access: yes, 2012
Las aguas superficiales continentales son fácilmente contaminadas por lo que es conveniente conocer su estado ambiental para detectar las agresiones al sistema y brindar conocimiento para su preservación. El río Paraná, uno de los principales componentes
de la Sierra, Patricia Monica   +8 more
core  

Cross‐Species Reprogramming of Developmental Plasticity and Metabolic Rewiring via Banana‐Derived WUS2 Developmental Regulator

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Plant regeneration is governed by intrinsic gene regulation and phytohormonal cues. WUSCHEL (WUS) gene promotes regeneration, but its broader functional role remains unexplored. Here, we demonstrate that the constitutive and inducible expression of banana‐derived WUS2 (GN‐WUS2) enhances regeneration in Nicotiana tabacum (tobacco) and Musa ...
Roni Chaudhary   +3 more
wiley   +1 more source

Analysis of immunization time, amplitude, and adverse events of seven different vaccines against SARS-CoV-2 across four different countries. [PDF]

open access: yesFront Immunol, 2022
Romero-Ibarguengoitia ME   +21 more
europepmc   +2 more sources

PRESENCIA DE RHEIDAE EN TIERRA DEL FUEGO DURANTE LA TRANSICIÓN PLEISTOCENO-HOLOCENO: IMPLICANCIAS BIOGEOGRÁFICAS Y PALEOECOLÓGICAS RHEIDAE PRESENCE DURING PLEISTOCENE-HOLOCENE TRANSITION IN TIERRA DEL FUEGO: BIOGEOGRAPHICAL AND PALAEOECOLOGICAL IMPLICATIONS

open access: yesMagallania, 2009
En este trabajo presentamos de manera preliminar información sobre una fecha taxón de 9.960 ± 50 años AP, obtenida para una falange primera de Rheidae procedente del sitio Tres Arroyos 1, norte de Tierra del Fuego, Chile.
FABIANA M MARTIN   +3 more
doaj  

Late Gadolinium Enhancement by Cardiac Magnetic Resonance and Speckle Tracking Echocardiography in the Evaluation of Cardiac Complications in Chagas Cardiomyopathy: A Systematic Review. [PDF]

open access: yesRev Cardiovasc Med, 2022
Romero Acero LM   +13 more
europepmc   +1 more source

On the Naturalistic Grounds of Grounding

open access: yesRatio, EarlyView.
ABSTRACT This paper examines whether grounding can be naturalized. We adopt a tripartite framework—Ocat (scientific catalogue of existents), Otyp (ontological types), and metaphysics (natures/modal profiles)—and show that classifying as such the relata of putative grounding claims forces a dilemma.
Raoni Arroyo, Jonas R. Becker Arenhart
wiley   +1 more source

Opening the doors: Legal consequences of breaching international climate obligations in the ICJ Advisory Opinion on climate change

open access: yesReview of European, Comparative &International Environmental Law, EarlyView.
Abstract In its landmark advisory opinion on States' obligations regarding climate change, the International Court of Justice (ICJ) tackled the highly contentious issue of the legal consequences of unlawful acts and State responsibility. While the Court adopted a more cautious approach on this matter than it did when interpreting States' primary ...
Yann Kerbrat, Sandrine Maljean‐Dubois
wiley   +1 more source

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